update preview URLs and add laptop

public/bildquellen.html

@@ -10,16 +10,19 @@
 <jl-header data-title="Bildquellen"></jl-header>
 <div id="content">
     <ul>
-        <li><span class="clickSpan" src='/img/bannerHome.webp'>Bild oben</span>: Photo by <a
+        <li><span class="clickSpan" src='/API/getFile.php?filename=img/bannerHome.webp'>Bild oben</span>: Photo by <a
                 href="https://unsplash.com/@hishahadat?utm_source=unsplash&amp;utm_medium=referral&amp;utm_content=creditCopyText">Shahadat
             Rahman</a>&nbsp;on&nbsp;<a
                 href="https://unsplash.com/s/photos/programmer?utm_source=unsplash&amp;utm_medium=referral&amp;utm_content=creditCopyText">Unsplash</a>
         </li>
-        <li><span class="clickSpan" src='/img/bildHome.webp'>Bild Startseite</span>: Photo by&nbsp;<a
+        <li><span class="clickSpan" src='/API/getFile.php?filename=img/bildHome.webp'>Bild Startseite</span>: Photo by&nbsp;<a
                 href="https://unsplash.com/@grohsfabian?utm_source=unsplash&amp;utm_medium=referral&amp;utm_content=creditCopyText">Fabian
             Grohs</a>&nbsp;on&nbsp;<a
                 href="https://unsplash.com/s/photos/programmer?utm_source=unsplash&amp;utm_medium=referral&amp;utm_content=creditCopyText">Unsplash</a>
         </li>
+        <li>
+            <span class="clickSpan" src='/API/getFile.php?filename=img/laptop.jpg'>Bild Laptop</span>: <a href="https://sm.pcmag.com/t/pcmag_au/review/l/lenovo-thi/lenovo-thinkpad-l13-yoga_7bvb.1920.jpg">pcmag</a>
+        </li>
     </ul>
 </div>
 <jl-footer></jl-footer>